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Bamboo fiber modified polypropylene material and preparation method thereof

A polypropylene material and bamboo fiber technology, applied in the field of modified polypropylene, can solve the problems of die blockage, low compatibilizer addition, affecting production efficiency, etc., to avoid die blockage, reduce oxidative decomposition, and improve production. The effect of efficiency

Active Publication Date: 2014-04-30
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the regularity of the structure, polypropylene is a non-polar material with lipophilicity and has poor compatibility with bamboo fiber.
When they are blended and extruded with a twin-screw extruder, bamboo fiber and polypropylene will have defects such as "die blockage" and "melt roughness" due to poor compatibility; When slitting pellets, it is very easy to break the sliver, which will affect the production efficiency
[0006] Chinese patent CN102229749B discloses a new type of bamboo-plastic composite material. By adding a toughening agent, the toughness of the bamboo-plastic composite material is effectively improved. Problems such as "die head clogging", "melt roughness" and broken strips when cold drawn strips are pelletized
In addition, due to the oxidative decomposition of bamboo powder, the bamboo-plastic composite material will have an unpleasant smell, which will affect the application range of the bamboo-plastic composite material.

Method used

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  • Bamboo fiber modified polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Weigh 100 parts of polypropylene T30S, 50 parts of 100-mesh bamboo fiber, 25 parts of maleic anhydride grafted polypropylene PP-G1001, 0.3 parts of antioxidant 1010, 0.3 parts of antioxidant 168, and 0.4 parts of antioxidant DSTDP, 1 part of lubricant stearic acid, 1 part of lubricant maleic anhydride grafted polypropylene wax 6452, 1 part of odor masking agent SW100, placed in a high-speed mixer, and mixed at high speed for 3 minutes;

[0036] (2) Add the material obtained in step (1) into a twin-screw extruder, extrude and granulate at the temperature of each section of the extruder at 150-180° C., and prepare the bamboo fiber modified polypropylene of the present invention. The polypropylene was subjected to an odor test, and the results are shown in Table 2.

Embodiment 2

[0042] (1) Weigh 100 parts of polypropylene T30S, 75 parts of 100-mesh bamboo fiber, 37.5 parts of maleic anhydride grafted polypropylene PP-G1001, 0.45 parts of antioxidant 1010, 0.45 parts of antioxidant 168, and 0.6 parts of antioxidant DSTDP, 1.5 parts of lubricant stearic acid, 1.5 parts of lubricant maleic anhydride grafted polypropylene wax 6452, 1.5 parts of odor masking agent SW100, placed in a high-speed mixer, and mixed at high speed for 2 minutes;

[0043] (2) Add the material obtained in the step (1) into a twin-screw extruder, and extrude and pelletize each section of the extruder at a temperature of 150-180° C. to prepare the bamboo fiber-modified polypropylene of the present invention. The polypropylene was subjected to an odor test, and the results are shown in Table 2.

[0044]

Embodiment 3

[0050] (1) Weigh 100 parts of polypropylene T30S, 100 parts of 100-mesh bamboo fiber, 50 parts of maleic anhydride grafted polypropylene PP-G1001, 0.6 parts of antioxidant 1010, 0.6 parts of antioxidant 168, and 0.8 parts of antioxidant DSTDP, 2 parts of lubricant stearic acid, 2 parts of lubricant maleic anhydride grafted polypropylene wax 6452, 2 parts of odor masking agent SW100, placed in a high-speed mixer, and mixed at high speed for 5 minutes;

[0051] (2) Add the material obtained in the step (1) into a twin-screw extruder, and extrude and pelletize each section of the extruder at a temperature of 150-180° C. to prepare the bamboo fiber-modified polypropylene of the present invention. The polypropylene was subjected to an odor test, and the results are shown in Table 2.

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Abstract

The invention relates to a bamboo fiber modified polypropylene material and a preparation method thereof. The bamboo fiber modified polypropylene material is prepared by mixing 100 parts of polypropylene, 50-100 parts of bamboo fibers, 25-50 parts of maleic anhydride grafted polypropylene, 1-2 parts of antioxidant, 2-4 parts of lubricating agent and 1-2 parts of smell hiding agent, and carrying out extruding granulation. The prepared bamboo fiber modified polypropylene not only has small smell but also better solves the problem of compatibility of polypropylene and the bamboo fibers and avoids die head blockage and coarse melt during extruding granulation, and can avoid the phenomenon of broken bars when cold bracing and grain cutting are adopted, thus improving the production efficiency.

Description

[0001] technical field [0002] The invention belongs to the technical field of modified polypropylene, in particular to a bamboo fiber modified polypropylene material and a preparation method thereof. [0003] Background technique [0004] Bamboo fiber is a kind of cellulose fiber extracted from naturally growing bamboo. It is the fifth largest natural fiber after cotton, hemp, wool and silk. Bamboo fiber has the characteristics of good air permeability, instant water absorption, strong wear resistance and good dyeability, and at the same time has natural antibacterial, antibacterial, anti-mite, deodorant and anti-ultraviolet functions. The natural environment-friendly green fiber. At present, bamboo fibers can be used to modify polypropylene, and a semi-degradable plastic that is antibacterial and looks similar to bamboo can be obtained. [0005] However, because the chemical composition of bamboo fiber is mainly cellulose, hemicellulose and lignin, the surface contains...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L97/02C08L51/06C08K5/00C08K5/134C08K5/526C08K5/372C08K5/09B29B9/06
CPCB29B9/06B29C48/92B29C2948/92704C08L23/12C08L97/02C08L2205/025C08L2205/035C08L2205/16C08L51/06C08K5/1345C08K5/526C08K5/372C08K5/09
Inventor 杨桂生程伟孙利明姚晨光
Owner HEFEI GENIUS NEW MATERIALS